/* funcs.c */

int b;
int func3(int x1, int x2, int x3, int x4, int x5, int x6)
{
	int res; 
	res = x1 + x2 + x3 + x4 + x5 + x6;
	return res;
}
int func2(int a, int b, int c, int d, int e)
{
	int f = 6, res; 
	res = func3(a, b, c, d, e, f);
	return res;
}
int func1(int x, int y)
{
	int a = 3, b = 4, c = 5, res; 
	res = func2(x, y, a, b, c);
	return res;
}
int main()
{
	int a1 = 1, a2 = 2;
	b = func1(a1, a2);
}

